Exchange Activesync error 1008

Copper Contributor



Event 1008 logged in Exchange server CU23 with KB5019758 installed

IOS version is iOS 16.1.1 20B101

Verified that user is not part of protected users group (AdminSd holder issue)

Verified that issue mentioned in below article is not observed




1 Reply

Hi @Ajit Terdalkar - Have you tried to remove all the device partnerships and have the user re-configure the account? You can do this from ECP or ADSI edit. Additonally, you can also gather the ActiveSync device logs for further investigation -


I would also check to see if there are any messages stuck in the outbox on the user's mobile device.